Hermetic separable fastener



July 14', 1942. D. MARINSKY ETAL HERMETIC SEPARABLE FASTENER Filed NOV. 29, 1940 ATTORNFS y of this pressure may be varied on different fasteners to adapt the same for different `uses as will be apparent. It will be understood that between the interlocked or interengaged portions of the links are clearance spaces which will compensate for the displacement of the rubber as will be apparent. The strip I6 may be secured within and between the Stringer tapes or the mounting portions thereof in any desired ymanner to..,es tablislr la., posltive...seal between y the stringersi', tinckalso-"between thelarticle j oi.` gai;- ment ends"y which are secured to the stringer tapes. the strips I6 may be stitched as seen at 23 and cemented or otherwise securedin-positior'i.

The slider 22 is of more, or less conventional, form except that the inturne'd -flanges' 24 of the the application of additional sealing means. In such latter instances it will of course be apparent that the use ofthe yieldablematerial such as rubber, gum, felts and the like, need not nec- 10 mentsenveloping the body, andin such uses, it `-is (iftenjdesrable toQpr-.ov'ide means detachably In` other Words, for primary purposes- "29 and box parts 30 for the reception ofthe "fp'i l"ritiri/sa?'JIZhe pin Aparts A29 are arranged on .the mounting.edges vIl and secured thereto kby rivet pins"3l which yextendthrough the part t8 top and bottom walls therecfawill: engagez-the 1.? outer surfaces of the two pairs of stringere,ern-

ployed. In some instances, it may be 'desirable tof.unite. the links under slight ,pressureV engagement .upon Ythe strip, llxfforfexample by moving outenli-nks in the, .direction `of.:i r 1ner links sodas to establish a, close, relationshipv of-i the link portions- :of j both ,strngersmpon the ends I 8 ,of vthe :strips-t6 te i reinforce-the ,same lagainst,pressures to ,which these, \stripends miaybesulejected.,y This pressure will` alsosjhave a,tendencyto .distortfthe sealing :strips :substantially- ,in vthe manner illustrated'in Figs. ,8 and 8a of the Vdrawing at points beyond the-coupled..or;interlocked ends, and the degree of this distortionnr displacement ofthe r'sealing'st ripsmay beyvaried'. In Fig. 8g-the links *of the-,opposed `chains. on one Stringer are-arranged in vertical;y alinementywhereas yinliig. 8a the links -are staggered.; With the latter :struc- .ture it .will beunderstood `that Athe pin :andribox couplings 5 as rin Figs.- 3 .and 4 will be correspondinglystaggered.,l

The slider 22 will alsofhavega-nger piece .or

pull 2,5 of any-desired` construction, -andhis pull :may includea lock element 26 for-fretainingfithe pull in lockedspositiononj'the Istringers, or. .any other meansmay be providedforthis purpose:

. In vEig.` 'I'of the drawing, Aa slight modification is illustrated wherein the inner lends 18a ofstrips `IBasiinilar-,tozthe strip I6 are provided, onewith a Y recessl 2l, and. the other .withaa; tongue `28 adapted to enter thev lrecess in 'order to establish a substantial dove-tailedseal joint between. ad I jacent abuttingendsyof the seal strips' when coupled together insteacLof a single flat surface abutmentias yisillustrateclin the other figures. This type of construction is yapplicable 'to thick sealing strips as will besapparentm I twill` of course be.-understood that any other form and construction of abutmentI may be vprov-idedto laccomplish the desiredresult.`-A The `strips i6, 16a-,may becomposied -ofany suitable material, and in-many instances, rub

ber, synthetic rubber, v,or-,fothersuitably resilient materialsmay be employedf Where -it is desirable tov maintain the. :free flexibility :of theVV fastener, particularly ingarment uses, it ywill be desirable to include flexible-sealing. strips, .but otherwise .these strips may be madfsemi-flexible or in fact substantially'rigid. except..from the standpoint of providing and maintaining sufiicientyielding properties at abutting ends thereof ',toeffectand maintain the seal between these strips. In some instances, it may-be desirable to-use independent sealing means between the abutting linksof the strips, particularly in shipping merchandise in containers where the seal may. be` broken inthe opening of the fastener and vthen re-sealed by .they fastener will be so constructed with respect to 4couplingthe fastener stringers. v For this purpose, we have shown in the drawing the pin parts ofxthesea1ing1stripas is clearly represented in Figsfiand v5 of the drawing. The pin parts v2S-include at their inner ends link portions 32 for` engagement ,with end links33,of the companionstringers., `The box parts 3U each consti-tute halffchannel portions 34 for yreceiving the ping parts l2,9', notelig. 15 ,Y of the drawing.; the

struction, it will-.appear that the'sealing strips extend` togorg in other words throughout the fu-ll` length/of .the stringers, including the cou- ,plinggendfportions thereof. In fact, the strips l5 may.;,ex`tend beyond thesev ends, if desired, in certain 4adaptations of 4the invention.

In all instances, the `tapes andsealing strips of .they links remployed iasA to .maintain adjacent surfaces vof the twozstringers` in closejabutting relationship to ,the .sealing strip disposed vtherebetween toprevent any appreciable independent flexure or movementk o f thelinks Vwith respect. to thestrip -in a manner ,which would break the seal 'between adjacent abutting -ends -of 'the strip lwhile at the same timeproviding in the complete fastener the desirableilexibility which will .adapt vthe samefto the many intended uses. 1It will also be apparent. `that in `using sealing vstrips of various typesl and kinds,;the degree of displacement of the strip will be varied.

As anartileof ,fmanufacture, it will :appear that a complete fastener device -constitutes a closure means 'which in its :entirety will establish a gas or liquid'seal in the opening of an article to which vthe .sealing fastener unit may be apv plied., i

;faces. It will of course be vapparent that the jinner abuttingends ofy the sealing strips vterminate inwardly of the coupling ends of the links `on the respective link chains, and these ends are disposed substantiallyin falinement-with the .center ofthe coupling `portions of the ylinks so as tc establish a firm Aabutment or pressure engagement between the yends `of the strips when the stringers are coupled together.

`The stringers or the .link chains include tape portions which join the links to the 'parts of the stringer tapesrwhich are attached to the sup- Iports. ,'Iheseftape -,portions serve -to support the links or whatmight ybe Vsaid `vtobe .the ymounted endsof the links in iirm engagement with the strip when twof, Stringer -units are coupled; togetherfi-zL-f 9. Iny fastening, devicesef the :class described employing y ,stringers jadapted gto be coupled, and uncoupled, .by `a.,.vs1icle,lr ,movable longitudinally thereof, I.each ,Stringer vl.eo n iprigsing aunit consistingofwtwo re ti ely'frnovable rlink chains Y united togan.y attaching tape iportion, and' a sealr` ving strip interposed-between the link chains and extending Y. onto a least), fpafft. of. the attaching tapeportiona secured-thereto@ff together. a

` k 111. A hermetic. class described comprisinggefipal ofi sealingzfstrlps, said strips having@v `t;least;in` part, yieldable materal'fanld bein arranged fo1; edgewi'se ymovement toward andfrom eaehlotheruto establish a sealobetween adjacent edges! whenbroughtinto engagement', with each other` and means: on opposed .surfaces of the.: strips fortouplinghsaid strips together and forsupporting-adjacent -edges- .of the-"strips in firm engagement k with; each other when-said stripsv areycQupledy-bysaidmeansfx' 1 e a 12,145.v hermetioeclosuref of 4tlre arranged for -edgewise.; movement toward and from e'ach other to establish' a sealibe-tween ad# jacent edges whenvbroughtfinto engagement' with` eaoh other,means on,` opposed surfacesof the stripsgfor.- coupling. :said s tripsftogether ahdfor supporting adjacentedges of the stripsfin firm engagement `with, each other when said strips are coupled by said means; 'andi said means compris-g ing reinforcingfelements supporting the engaged'l strips against independent. exure betweenV said I' meanS.

10, A separable ias.tenerl of Y the class describedj comprisingfpairs ofstringersi l each Stringer IGomtrai elongated Vpamtimnng-..Strip class describedcomprising ,-.a pairtgof- :sealing strips, fsaid' strips having, at least. in part, yieldablef-material'and :13e-'A hermetic closure ofthe class described vcomprising 1a 'pair ofsealing'stripg'said strips having-,fat--ieast 'in fpartpyieldabie material, and

varranged "for edge'wi'se movementy toward and fro'mf-'eachother to establish 'a 'seal between adjacent edges when 'brought into'eng'agement with each` other,v means" 'on' opposed surfacesy "for 1fthe stripsfor coupling' said strips together and Lfor .supporting `adjacent vvedges V`of the strips in''im engagement with each'otlier'wh'en said vstripsare coupled `byve-s'aid means, andmea'ns supporting saidfirst named means in pressure engagement with side lsurfaces bf said stripsa-t4 abutting perf l .14.The vcombmation' with"s'eparab1e "fastener stringers vemploying a slider'movable longitudi-v nally 'oflthe 'stringers to copleand uncouple the same.,V of lmeans'-"forming a seal betweenfthe -string'ers when'- coupled together, said means comprising sealing strips constitutinga'unitary 'part' of each-stringer,*and the sealing'strip of one 'Stringer 'being adapted for. rmlenga'gement with'the'sea-ling strip of the opposed Stringer in couplingsaid stringers logethe'r.

155A hermetic 'separable fastener comprising twoy pairs'vof link chains,` one vpair of chains hav-g ing links adapted to be coupled and uncou'pled, the other pair of :chains being arranged upon the f' flrs't-n'amedfpair and 'comprising' links adapted to be coupled andv uncouple'd',v means movable along both pairs of link chains for simultaneously'lcoupllng and' unijoupling the links thereof, and means disposed between adjacent surfaces of the chains forming a yseal between the link chains when the said 'linki'chai'ns are coupled together.

-lA 'hermetic separable fastener` comprising two pairs of link chains, one pair of chains hav` in'gf-links'adapted -to be' coupled and uncoupled,

` the other pail* of chains being arrangedupon the rstnamedpairl and comprising links adapted to- VAbe coupled and unoeupled, means vmovable along: both pairs of -linkch'ain's for4 simultaneously"couplingvan1d uncoupling the links' thereof,

x -means disposed between 'adjacent surfacesof the chains forming a seal between the link'chains when .the saidflii'ik 'chains' arel coupled together, and saidr coupling means moving the pairs of linkfchain's'toward'each other into firm engagement' with "the-interposed sealing means in firmly supporting the sealing means between the cou-4 Dledpairs'oflinkchains. j' y nw DAVIS yMARINSKYl Louis MORIN. 

